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General| Frequency Range | 136-174 MHz (VHF), 403-470 MHz (UHF), 800 MHz |
|---|---|
| Modulation | FM, Digital |
| Dimensions | Varies by model |
| Weight | Varies by model |
| Encryption | DES, AES (Optional) |
| Operating Temperature | -30°C to +60°C |
Information on compliance with RF energy exposure requirements and approved accessories.
Information on how to obtain manual revisions (FMRs).
Legal notice regarding copyrighted Motorola computer programs.
Legal notice regarding duplication and distribution of the document.
Statement regarding reliability and changes to products.
Lists registered trademarks of Motorola.
Lists the manual editions and their publication dates.
Overview of the manual's purpose and content for maintaining product performance.
Explains the use of warnings, cautions, and notes for safety and operational emphasis.
Describes the ASTRO Digital Spectra radio's architecture, models, and major assemblies.
Explains the radio's signal reception and transmission process in analog mode.
Details the operation in ASTRO mode, focusing on deviation levels.
Discusses the basic operation and components of the control head assembly.
Detailed circuit description of the RF board for VHF, UHF, and 800 MHz models.
Detailed circuit description of the ASTRO Digital Spectra Command Board.
Detailed circuit description of the ASTRO Digital Spectra VOCON board (non Plus).
Detailed circuit description of the ASTRO Digital Spectra Plus VOCON board.
Detailed circuit description of the voltage-controlled oscillator (VCO) for different bands.
Detailed circuit description of the receiver front-end (RXFE).
Detailed circuit description of the power amplifiers.
Guidance for troubleshooting ASTRO Digital Spectra radio malfunctions.
Troubleshooting procedures specific to ASTRO Spectra Plus radios.
Band-specific troubleshooting procedures for the VCO.
Band-specific troubleshooting procedures for the receiver front-end.
Band-specific troubleshooting procedures for the power amplifier.
Introduction to troubleshooting flowcharts for circuit operation and troubleshooting techniques.
Lists troubleshooting charts by chart number, description, and page number.
Introduction to waveform images for verifying circuit operation.
Images of waveforms for ASTRO Digital Spectra, useful for verification.
Waveform images specific to the ASTRO Digital Spectra Plus VOCON board.
Lists all schematics and component location diagrams contained within the chapter.
Provides schematics and component location diagrams for VOCON boards.
Provides schematics for ASTRO Spectra Plus VOCON boards.
Lists schematics and component location diagrams for VCO sections across different bands.
Lists schematics and component location diagrams for receiver front-end sections.
Lists schematics and component location diagrams for power amplifiers.
Introduces secure modules for encryption and decryption of voice and data.
Describes the circuit operation and interface of the secure module.
Procedures for troubleshooting secure operations and specific error codes.
Guidelines for ordering replacement parts, including required identification.
Information on ordering replacement transceiver and VOCON boards.
Information on accessing the Motorola online catalog.
Details on how to place mail orders for parts and equipment.
Lists terms and their definitions applicable to ASTRO radios.
Provides definitions for terms used in the manual.
Index entries for numerical terms and specifications.
Index entries for terms starting with the letter 'A'.
Index entries for terms starting with the letter 'B'.
Index entries for terms starting with the letter 'C'.
Index entries for terms starting with the letter 'H'.
Index entries for terms starting with the letter 'I'.
Index entries for terms starting with the letter 'K'.
Index entries for terms starting with the letter 'L'.
Index entries for terms starting with the letter 'M'.
Index entries for terms starting with the letter 'N'.
Index entries for terms starting with the letter 'O'.
Index entries for terms starting with the letter 'P'.
Index entries for terms starting with the letter 'R'.
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